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Mathematics 19 Online
OpenStudy (anonymous):

4(a ⋅ b) = (4 ⋅ a)b is an example of which algebraic property?

TheSmartOne (thesmartone):

mhmm, do you have any idea? :)

TheSmartOne (thesmartone):

And welcome to OpenStudy! :D

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

can you help

TheSmartOne (thesmartone):

sure :)

OpenStudy (anonymous):

please

OpenStudy (anonymous):

thanks

TheSmartOne (thesmartone):

Do you know the associative property of multiplication and commutative property of multiplication

TheSmartOne (thesmartone):

we need to decide between these two to figure out your answer :)

OpenStudy (anonymous):

associative right

OpenStudy (usukidoll):

yes it is associative... because the placement of the () changes. Commutative looks like this ab=ba

TheSmartOne (thesmartone):

^

OpenStudy (usukidoll):

oops that commutative property of multiplication. forgot to type that

OpenStudy (anonymous):

thanks

TheSmartOne (thesmartone):

@UsukiDoll is correct Associative always has 3 or more in multiplication Meanwhile, commutative only has 2. But they both are similar except for the number of stuff getting multiplied :)

OpenStudy (anonymous):

wait so is it commutative

OpenStudy (anonymous):

wait so is it commutative

OpenStudy (usukidoll):

noooooooooooo

TheSmartOne (thesmartone):

you were correct, it's associative :)

OpenStudy (anonymous):

oh thank you

TheSmartOne (thesmartone):

we were just trying to show the difference between them so you won't forget :)

OpenStudy (usukidoll):

^ yup

OpenStudy (anonymous):

ok thank you this means alot

TheSmartOne (thesmartone):

Anytime!

TheSmartOne (thesmartone):

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OpenStudy (anonymous):

awe thanks

TheSmartOne (thesmartone):

If you need any help you can always tag me and UsukiDoll by placing an @ before our username like @TheSmartOne :)

OpenStudy (anonymous):

oh actually

OpenStudy (anonymous):

can you help me with one more

TheSmartOne (thesmartone):

sure, ask away :)

OpenStudy (anonymous):

It took Xander 31 minutes to run a 5-kilometer race last weekend. If you know that 1 kilometer equals 0.621 mile, how many minutes did it take Xander to run 1 mile during the race? Round your answer to the nearest hundredth.

TheSmartOne (thesmartone):

ok, 1 kilometer = 0.621 miles 5 kilometer = ?? Hint: 0.621 x 5 = ?

OpenStudy (anonymous):

1)1.99 2)3.105 3)9.98 4)15.52

TheSmartOne (thesmartone):

Those are the answer choices, mhmm?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

hello

OpenStudy (usukidoll):

\(\color{blue}{\text{Originally Posted by}}\) @TheSmartOne ok, 1 kilometer = 0.621 miles 5 kilometer = ?? Hint: 0.621 x 5 = ? \(\color{blue}{\text{End of Quote}}\)

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

3.105

OpenStudy (usukidoll):

yes that's right

TheSmartOne (thesmartone):

so they cover 3.105 miles in 31 minutes. to find out how long it takes to run 1 mile you divide 31 by 3.105

TheSmartOne (thesmartone):

^ and whatever you get now would be your final answer :)

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